GIS based qualitative analysis of Urban River Stream
GIS based qualitative analysis of Urban River Stream: A Case Study of Nag River Urban Watershed, District Nagpur, Maharashtra, India
(Version 6/25/07)
Pinak Ranade and Y.B. Katpatal
ABSTRACT: Most of the modern day rivers in India are severely polluted due to the irresponsible attitude & mismanagement by the people / stakeholders. As per the urban river health assessment studies, many cities of India may be termed as an excellent and classic example of the mismanagement of the rivers. Nag river flows for most of its course through the urbanized part of Nagpur city, a city with approx. population of 25 million. The Nag river eco-system is under maximum stress, due to the social and economic activities carried out by various population classes on different land use patterns. The occupational and domestic activities in various households invariably result in the production of liquid, solid and gaseous wastes of various types and quantities, which subsequently find their way into the river. In this case study for Nag River urban watershed, GIS based qualitative analysis of Nag river stream has been carried out.
The above case study will be beneficial in better planning for controlling the pollution of river stream and revival of existing river status & designing of sewer network based on the area wise wastewater generation. Also, it will help the respective civic authorities to establish smaller wastewater treatment plants at suitable locations instead of having a single treatment plant. The study also helps to understand the possible scenario of river water quality in the absence of certain category. The above case study also emphasizes that Indian cities needs to revive and sustain rivers.
